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New Efficient Procedure for the Use of Diethoxyphosphoryl as a Protecting Group in the Synthesis of Polyazamacrocycles. Preparation of Polyazacyclophanes Derived from Resorcinol

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journal contribution
posted on 26.12.2003 by M. Isabel Burguete, Laura López-Diago, Enrique García-España, Francisco Galindo, Santiago V. Luis, Juan F. Miravet, Dariusz Sroczynski
The synthesis of polyazamacrocycles containing an electron-rich aromatic subunit derived from resorcinol is described. The reported synthetic procedure is based on the use of diethoxyphosphoryl (Dep) as an amine protecting group. The new conditions employed for the cyclization reaction allow for a generalized use of Dep in the synthesis of polyazamacrocycles.